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公开(公告)号：US10206058B2
公开(公告)日：2019-02-12
申请号：US15826646
申请日：2017-11-29
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/20 , H04B17/21 , H04W64/00 , H04B17/318 , H04B17/373
Abstract: Determining a location of a user device comprises a wireless system supported by wireless access points receiving signals from a user device. The wireless system estimates a location of the user device based on a coarse calculation based on an angle of arrival of the received signal and determines if the user device is in an area under an access point. The wireless system identifies received signal strength indicator values for the user device and uses the values and the calculated location of the user device to improve calibration of a received signal strength location model. If the system determines that the user is not in the area under the access point, the wireless system combines the coarse calculation location, a received signal strength determined location, and a previous received signal strength determined location, and estimates a location based on the combined calculations.
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2.发明申请公开(公告)号：US20200015189A1
公开(公告)日：2020-01-09
申请号：US16029000
申请日：2018-07-06
Applicant: Cisco Technology, Inc.
Inventor： Abhishek Mukherji , Santosh Ghanshyam Pandey , Rong Peng , Vinay S. Raghuram
Abstract: In one embodiment, a device determines that location accuracy performance of an indoor positioning system deployment is below a predefined threshold. The device obtains characteristic data for the indoor positioning system deployment. The device identifies, by using the characteristic data as input to a machine learning model, one or more contributing factors from the characteristic data for the location accuracy performance of the indoor positioning system deployment being below the predefined threshold. The device initiates a remediation action based on the identified one or more contributing factors for the location accuracy performance of the indoor positioning system deployment being below the predefined threshold.
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公开(公告)号：US10149093B2
公开(公告)日：2018-12-04
申请号：US15662111
申请日：2017-07-27
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng , Brian Donald Hart
IPC: H04W4/02 , H04B17/318 , H04B17/21 , H04B17/27 , G01C21/20 , H04B17/391
Abstract: Determining a location of a user device comprises a wireless system supported by wireless access points receiving signals from a user device. The wireless system estimates a location of the user device based on a coarse calculation based on an angle of arrival of the received signal and determines if the user device is in an area under a access point. If so, the wireless system performs a fine location calculation. The wireless system identifies received signal strength indicator values for the user device and uses the values and the calculated location of the user device to improve calibration of a received signal strength location model. If the system determines that the user is not in the area under the access point, the wireless system combines the coarse calculation location and a received signal strength determined location and estimates a location based on the combined calculations.
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公开(公告)号：US09749786B1
公开(公告)日：2017-08-29
申请号：US15077883
申请日：2016-03-22
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng , Brian Donald Hart
IPC: H04W4/02 , H04B17/318 , G01C21/26
CPC classification number: H04W4/02 , G01C21/20 , H04B17/21 , H04B17/27 , H04B17/318 , H04B17/3913
Abstract: Determining a location of a user device comprises a wireless system supported by wireless access points receiving signals from a user device. The wireless system estimates a location of the user device based on a coarse calculation based on an angle of arrival of the received signal and determines if the user device is in an area under a access point. If so, the wireless system performs a fine location calculation. The wireless system identifies received signal strength indicator values for the user device and uses the values and the calculated location of the user device to improve calibration of a received signal strength location model. If the system determines that the user is not in the area under the access point, the wireless system combines the coarse calculation location and a received signal strength determined location and estimates a location based on the combined calculations.
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公开(公告)号：US20170078843A1
公开(公告)日：2017-03-16
申请号：US15077875
申请日：2016-03-22
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/26 , H04B17/318
CPC classification number: H04W4/023 , G01C21/26 , G01S5/0054 , G01S5/0268 , G01S5/0278 , G01S5/04 , G01S5/14 , H04B17/318 , H04W64/00
Abstract: Determining a location of a user device comprises a wireless computing system supported by an access point. The wireless computing system receives a signal from the user device. The system estimates a location of the user device based on RSSI and calculates a boundary around the estimated location. The wireless computing system selects a plurality of sections inside of the boundary and performs a coarse calculation of a location of the user device based on an angle of arrival of the received signal. The system determines sections of the plurality of sections that have results from the coarse calculation that are more likely to be a location of the user device. The system performs a fine calculation of the location based on the angle of arrival of the received signal within each of the sections. The system identifies a particular section as the location of the user device.
Abstract translation: 确定用户设备的位置包括由接入点支持的无线计算系统。 无线计算系统从用户设备接收信号。 系统基于RSSI估计用户设备的位置，并计算估计位置周围的边界。 无线计算系统选择边界内的多个部分，并根据接收到的信号的到达角度对用户装置的位置进行粗略的计算。 该系统确定具有更可能是用户设备的位置的粗略计算结果的多个部分的部分。 该系统基于每个部分内的接收信号的到达角度对位置进行精细计算。 系统将特定部分标识为用户设备的位置。
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Patent Agency Ranking
公开(公告)号：US10349216B1
公开(公告)日：2019-07-09
申请号：US16103781
申请日：2018-08-14
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Huy Phuong Tran , Abhishek Mukherji , Rong Peng , Oscar Berjarano Chavez , Santosh Ghanshyam Pandey
Abstract: An enterprise system configures access point devices at an enterprise location to communicate with a location determination system. The location determination system receives wireless signal attributes of user computing devices broadcasting Wi-Fi signal data at the enterprise location from one or more access point devices. For a particular time window, the location determination system determines aggregated features of received wireless signal data across all access point devices, and classifies each of the user computing devices as moving or stationary by applying the wireless signal data to a model. For each of the user computing devices determined to be moving, the location determination system calculates a respective position of the user computing device based on the wireless signal data. For each of the user computing devices determined to be stationary, the location determination system does not calculate a respective position of the respective user computing device.
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公开(公告)号：US20190020977A1
公开(公告)日：2019-01-17
申请号：US16136185
申请日：2018-09-19
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01S5/00 , H04B17/318 , G01C21/26 , G01S5/02
CPC classification number: H04W4/023 , G01C21/26 , G01S5/0054 , G01S5/0268 , G01S5/0278 , G01S5/04 , G01S5/14 , H04B17/318 , H04W64/00
Abstract: Determining a location of a user device comprises a wireless computing system supported by an access point. The wireless computing system receives a signal from the user device. The system estimates a location of the user device based on RSSI and calculates a boundary around the estimated location. The wireless computing system selects a plurality of sections inside of the boundary and performs a coarse calculation of a location of the user device based on an angle of arrival of the received signal. The system determines sections of the plurality of sections that have results from the coarse calculation that are more likely to be a location of the user device. The system performs a fine calculation of the location based on the angle of arrival of the received signal within each of the sections. The system identifies a particular section as the location of the user device.
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公开(公告)号：US10104503B2
公开(公告)日：2018-10-16
申请号：US15602391
申请日：2017-05-23
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
Abstract: Determining a location of a user device comprises a wireless computing system supported by an access point. The wireless computing system receives a signal from the user device. The system estimates a location of the user device based on RSSI and calculates a boundary around the estimated location. The wireless computing system selects a plurality of sections inside of the boundary and performs a coarse calculation of a location of the user device based on an angle of arrival of the received signal. The system determines sections of the plurality of sections that have results from the coarse calculation that are more likely to be a location of the user device. The system performs a fine calculation of the location based on the angle of arrival of the received signal within each of the sections. The system identifies a particular section as the location of the user device.
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公开(公告)号：US20170280281A1
公开(公告)日：2017-09-28
申请号：US15172711
申请日：2016-06-03
Applicant: Cisco Technology, Inc.
Inventor： Santosh Pandey , Rong Peng
IPC: H04W4/02 , G01C21/20 , H04B17/318
CPC classification number: H04W4/02 , G01C21/206 , H04B17/21 , H04B17/318 , H04B17/373 , H04W64/00
Abstract: Determining a location of a user device comprises a wireless system supported by wireless access points receiving signals from a user device. The wireless system estimates a location of the user device based on a coarse calculation based on an angle of arrival of the received signal and determines if the user device is in an area under an access point. The wireless system identifies received signal strength indicator values for the user device and uses the values and the calculated location of the user device to improve calibration of a received signal strength location model. If the system determines that the user is not in the area under the access point, the wireless system combines the coarse calculation location, a received signal strength determined location, and a previous received signal strength determined location, and estimates a location based on the combined calculations.
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公开(公告)号：US10932139B2
公开(公告)日：2021-02-23
申请号：US16178042
申请日：2018-11-01
Applicant: Cisco Technology, Inc.
Inventor： Huy Phuong Tran , Abhishek Mukherji , Edmund Cameron Duhaime , Rong Peng , Santosh Ghanshyam Pandey , Jacob Earl Fussell
Abstract: A plurality of access points located within a building structure may provide various location-based services, such as navigation, to mobile devices within the building structure. To more accurately determine the location of the plurality of access points, a floorplan of the interior of the building structure may be obtained. A plurality of images of the interior of the building structure is then obtained. At least one of the images includes an image of at least one of the plurality of access points. A plurality of reference points may also be located within the building structure and obtained. Based on the plurality of images, reference points, and the floorplan, a composite image of the interior of the structure is generated. Based on the composite image, the location of each of the plurality of access points is determined.
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